Page 166 - python

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red = int(r**(1/gamma))

green = int(g**(1/gamma))
blue = int(b**(1/gamma))
img2.putpixel((x,y),(red,green,blue))
gamma = 0.7

img3 = Image.new("RGB", (img1.size[0], img1.size[1]), "white")
for x in range(0, img1.size[0]):
for y in range(0, img1.size[1]):

r,g,b = list(img1.getpixel((x,y)))
red = int(r**(1/gamma))
green = int(g**(1/gamma))
blue = int(b**(1/gamma))
img3.putpixel((x,y),(red,green,blue))

fig = plt.figure(figsize=(10,5))

ax = fig.add_subplot(1,3,1)
ax.imshow(img1)
ax.set_title('Original')

ax1 = fig.add_subplot(1,3,2)

ax1.imshow(img2)
ax1.set_title('Gamma 0.8')

ax2 = fig.add_subplot(1,3,3)

ax2.imshow(img3)
ax2.set_title('Gamma 0.7')
plt.show()

ผลลัพธ :

ภาพประกอบที่ 11.9 แสดงผลลัพธการปรับคาแกมมาของภาพ